94 lines
3.1 KiB
Python
94 lines
3.1 KiB
Python
import base64
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import logging
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import re
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from email.header import Header
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from email.mime.image import MIMEImage
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from email.mime.multipart import MIMEMultipart
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from email.mime.text import MIMEText
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from decouple import config
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from chalicelib.utils import smtp
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logger = logging.getLogger(__name__)
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def __get_subject(subject):
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return subject
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def __get_html_from_file(source, formatting_variables):
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if formatting_variables is None:
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formatting_variables = {}
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formatting_variables["frontend_url"] = config("SITE_URL")
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with open(source, "r") as body:
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BODY_HTML = body.read()
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if formatting_variables is not None and len(formatting_variables.keys()) > 0:
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BODY_HTML = re.sub(r"%(?![(])", "%%", BODY_HTML)
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BODY_HTML = BODY_HTML % {**formatting_variables}
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return BODY_HTML
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def __replace_images(HTML):
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pattern_holder = re.compile(r'<img[\w\W\n]+?(src="[a-zA-Z0-9.+\/\\-]+")')
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pattern_src = re.compile(r'src="(.*?)"')
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mime_img = []
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swap = []
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for m in re.finditer(pattern_holder, HTML):
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sub = m.groups()[0]
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sub = str(re.findall(pattern_src, sub)[0])
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if sub not in swap:
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swap.append(sub)
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HTML = HTML.replace(sub, f"cid:img-{len(mime_img)}")
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sub = "chalicelib/utils/html/" + sub
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with open(sub, "rb") as image_file:
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img = base64.b64encode(image_file.read()).decode('utf-8')
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mime_img.append(MIMEImage(base64.standard_b64decode(img)))
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mime_img[-1].add_header('Content-ID', f'<img-{len(mime_img) - 1}>')
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return HTML, mime_img
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async def send_html(BODY_HTML, SUBJECT, recipient, bcc=None):
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BODY_HTML, mime_img = __replace_images(BODY_HTML)
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if not isinstance(recipient, list):
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recipient = [recipient]
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msg = MIMEMultipart()
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msg['Subject'] = Header(__get_subject(SUBJECT), 'utf-8')
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msg['From'] = config("EMAIL_FROM")
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msg['To'] = ""
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body = MIMEText(BODY_HTML.encode('utf-8'), 'html', "utf-8")
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msg.attach(body)
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for m in mime_img:
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msg.attach(m)
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with smtp.SMTPClient() as s:
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for r in recipient:
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msg.replace_header("To", r)
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r = [r]
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if bcc is not None and len(bcc) > 0:
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r += [bcc]
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try:
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logging.info(f"Email sending to: {r}")
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s.send_message(msg)
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except Exception as e:
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logging.error("!!! Email error!")
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logging.error(e)
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def send_text(recipients, text, subject):
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with smtp.SMTPClient() as s:
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msg = MIMEMultipart()
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msg['Subject'] = Header(__get_subject(subject), 'utf-8')
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msg['From'] = config("EMAIL_FROM")
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msg['To'] = ", ".join(recipients)
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body = MIMEText(text)
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msg.attach(body)
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try:
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s.send_message(msg)
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except Exception as e:
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logging.error("!! Text-email failed: " + subject),
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logging.error(e)
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def __escape_text_html(text):
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return text.replace("@", "<span>@</span>").replace(".", "<span>.</span>").replace("=", "<span>=</span>")
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